scholarly journals Peculiarities of Central and Peripheral Changes at Onset of Dosed and Maximal Exercise Tests

2018 ◽  
Vol 3 (86) ◽  
Author(s):  
Birutė Zacharienė ◽  
Jonas Poderys ◽  
Eugenijus Trinkūnas ◽  
Alfonsas Buliuolis
Keyword(s):  
Oxygen Saturation ◽  
Cardiovascular System ◽  
Exercise Test ◽  
Near Infrared ◽  
Maximal Exercise ◽  
Arterial Blood Flow ◽  
Maximal Exercise Test ◽  
Exercise Tests ◽  
Arterial Blood ◽  
Significant Difference

Research background and hypothesis. Since varying types of physical workloads activate different physiological system activity at different degree, during dosed and maximal exercises the total effects can highlight the properties of central and peripheral mechanisms and reveal significant synergies between the central and peripheral cardiovascular processes. Research aim was to determine the peculiarities of central and peripheral indices of cardiovascular system while performing dosed and maximal exercise tests. Research methods. Two groups took part in the study – sportsmen-sprinters (16) and sportsmen – endurance group (11). The participants of the study performed Roufier exercise and 30 s maximal jump test with maximal efforts. The 12-leads ECG was registered continuously and the changes of heart rate (HR), JT interval and ratio JT/RR were analysed. Near-infrared spectroscopy was employed for continuous registration of the changes in oxygen saturation (StO 2 ) and arterial blood flow.Research  results.  The  results  obtained  during  the  study  showed  increasingly  changing  ECG  indices  while performing exercise load in both athlete groups but there was no statistically significant difference between groups while performing maximal exercise, thus oxygen saturation and arterial blood flow was statistically significantly faster and decreased more in sprint athlete group. Discussion  and  conclusion.  Dosed  and  maximal  exercise  test  indicated  the  peculiarities  of  cardiovascular function of athletes, although more differences between individual peculiarities of athletes can be revealed while performing a dosed exercise test and still more differences – while the maximal exercise tests are performed and during the recovery after exercising.Keywords: dosed and maximal exercise test, cardiovascular system, endurance, sprint.

scholarly journals Dynamics of Central and Peripheral Cardiovascular Indices While Performing Repetitive Dosed Exercise Test

2018 ◽  
Vol 3 (82) ◽  
Author(s):  
Kristina Poderienė ◽  
Eugenijus Trinkūnas ◽  
Jonas Poderys
Keyword(s):  
Heart Rate ◽  
Oxygen Saturation ◽  
Exercise Test ◽  
Near Infrared ◽  
Physiological Mechanisms ◽  
Exercise Tests ◽  
Time Performance ◽  
The Stability ◽  
Physiological Systems ◽  
Central Reaction

Research background and hypothesis. Various physical loads require a different level of activation of various physiological systems and physiological mechanisms, which can highlight the synergetic interaction between central and peripheral mechanisms. Research  aim.  The  aim  of  this  study  of  this  study  was  to  identify  and  compare  the  central  and  peripheral reactions of cardiovascular system while performing repetitive dosed exercise test.Research methods. The participants in the study (15 persons in each of the four groups: non-athletes males; non-athletes females; well-trained endurance runners and well-trained sprinters) performed three Roufier exercise tests, i. e. 30 squats per 45 s with two minutes of rest between exercising. 12-leads ECG was registered and the heart rate (HR), the duration of interval JT were measured and analysed. Changes of oxygen saturation (StO 2 ) in m. vastus leteralis were measured by near-infrared spectroscopy.Research results. One time performance of the physical load may not reveal any central and peripheral synergic peculiarities as adaptation to physical loads in cumulative. For non-athletes the performance of repetitive Roufier tests every two minutes produced the fatigue summation effects which were typical of central and peripheral indices; for well-trained athletes we observed the stability of central reaction and fatigue effects in peripheral responses.Discussion and conclusions. A lot of cardiovascular indices may indicate the summation effects of fatigue while repeatedly performing a Roufier Test with two minutes of rest between exercising. The peripheral changes start first and they impact the central cardiovascular changes.Keywords: electrocardiogram, dosed exercise test, oxygen saturation

Validation of a submaximal versus a maximal exercise test in obese individuals

2015 ◽  
Vol 17 (1) ◽  
pp. 37-44 ◽  
Author(s):  
Anita G.M. Wisén ◽  
Pan Mao ◽  
Leif Christiansen ◽  
Bengt Saltin
Keyword(s):  
Exercise Test ◽  
Maximal Exercise ◽  
Maximal Exercise Test

A COMPARISON OF THE PHYSIOLOGIC RESPONSE OF PATIENTS WITH CHD TO FOUR MAXIMAL EXERCISE TEST PROTOCOLS

1977 ◽  
Vol 9 (1) ◽  
pp. 75 ◽  
Author(s):  
M. D. Glese ◽  
R. J. Corliss ◽  
F. J. Nagle ◽  
T. A. Forman ◽  
Michael Glese
Keyword(s):  
Exercise Test ◽  
Maximal Exercise ◽  
Maximal Exercise Test ◽  
Physiologic Response

scholarly journals P207 Reliability Of Measurements Using Innocor Breath By Breath Analyser During A Maximal Exercise Test In Cystic Fibrosis Patients

Thorax ◽  
2014 ◽  
Vol 69 (Suppl 2) ◽  
pp. A167-A168
Author(s):  
K. Bayfield ◽  
M. McGovern ◽  
A. Simpson ◽  
M. Embley ◽  
S. Cunningham ◽  
...  
Keyword(s):  
Cystic Fibrosis ◽  
Exercise Test ◽  
Maximal Exercise ◽  
Maximal Exercise Test

scholarly journals Effects of annual training cycle on the metabolic response to supra-maximal exercise test in beach volleyball players

2011 ◽  
Vol 27 (1) ◽  
Author(s):  
Łucja Pilaczyńska-Szcześniak ◽  
Damian Lisiecki ◽  
Zbigniew Kasprzak ◽  
Joanna Karolkiewicz ◽  
Ewa Śliwicka ◽  
...  
Keyword(s):  
Exercise Test ◽  
Maximal Exercise ◽  
Metabolic Response ◽  
Maximal Exercise Test ◽  
Training Cycle ◽  
Volleyball Players

The Higher the Insulin Resistance the Lower the Cardiac Output in Men with Type 1 Diabetes During the Maximal Exercise Test

2017 ◽  
Vol 15 (5) ◽  
pp. 252-257 ◽  
Author(s):  
Pawel Niedzwiecki ◽  
Dariusz Naskret ◽  
Stanislaw Pilacinski ◽  
Maciej Pempera ◽  
Aleksandra Uruska ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Type 1 Diabetes ◽  
Cardiac Output ◽  
Exercise Test ◽  
Maximal Exercise ◽  
Maximal Exercise Test

Different Signatures of High Cardiorespiratory Capacity Revealed With Metabolomic Profiling in Elite Athletes

2020 ◽  
Vol 15 (8) ◽  
pp. 1156-1167 ◽  
Author(s):  
Gustavo Monnerat ◽  
Carlos A.R. Sánchez ◽  
Caleb G.M. Santos ◽  
Dailson Paulucio ◽  
Rodolfo Velasque ◽  
...  
Keyword(s):  
High Resolution ◽  
Exercise Test ◽  
Human Performance ◽  
Energy Use ◽  
Maximal Exercise ◽  
Maximal Oxygen Consumption ◽  
Endurance Performance ◽  
Maximal Exercise Test ◽  
Long Distance ◽  
Metabolic Alterations

Purpose: High cardiorespiratory capacity is a key determinant of human performance and life expectancy; however, the underlying mechanisms are not fully understood. The objective of this pilot study was to investigate biochemical signatures of endurance-performance athletes using high-resolution nontargeted metabolomics. Methods: Elite long-distance runners with similar training and anthropometrical records were studied. After athletes’ maximal oxygen consumption () was measured, they were divided into 2 groups: low (<65 mL·kg−1·min−1, n = 7) and high (>75 mL·kg−1·min−1, n = 7). Plasma was collected under basal conditions after 12 hours of fasting and after a maximal exercise test (nonfasted) and analyzed by high-resolution LC–MS. Multivariate and univariate statistics were applied. Results: A total of 167 compounds were putatively identified with an LC–MS-based metabolomics pipeline. Partial least-squares discriminant analysis showed a clear separation between groups. Significant variations in metabolites highlighted group differences in diverse metabolic pathways, including lipids, vitamins, amino acids, purine, histidine, xenobiotics, and others, either under basal condition or after the maximal exercise test. Conclusions: Taken together, the metabolic alterations revealed in the study affect cellular energy use and availability, oxidative stress management, muscle damage, central nervous system signaling metabolites, nutrients, and compound bioavailability, providing new insights into metabolic alterations associated with exercise and cardiorespiratory fitness levels in trained athletes.

Maximal Exercise Test

2013 ◽  
pp. 1201-1201
Author(s):  
Riyad Khanfer ◽  
John Ryan ◽  
Howard Aizenstein ◽  
Seema Mutti ◽  
David Busse ◽  
...  
Keyword(s):  
Exercise Test ◽  
Maximal Exercise ◽  
Maximal Exercise Test
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